exclude :test_argument_error, "work in progress"
exclude :test_bit_operations, "work in progress"
exclude :test_four_ops, "work in progress"
exclude :test_get_flags_and_set_flags, "work in progress"
exclude :test_mod, "work in progress"
exclude :test_mod_inverse, "work in progress"
exclude :test_mod_sqrt, "work in progress"
exclude :test_new, "work in progress"
exclude :test_to_str, "work in progress"
